Web registering device



Dec. 22,1936. H. A. w. WOOD WEB REGISTERING DEVICE Filed Feb. '28, 19312 Sheets-Sheet l H. A. w. WOOD WEB REGISTERING DEVICE 2 Sheets-Sheet 2Filed Feb. 28, 1931 Patented Dec. 22 "1936 UNiTED STATES smear orrlcr.

WEB REGISTERING DEVICE Application February 28, 1931, Serial No. 519,176

3 Claims. (01. 271-25) This invention relates to the end register of theprinted sheets in a printing press and it is particularly adapted fornewspaper printing. The principal objects of. the invention are toprovide means for end registering the web so that each page will beprinted exactly in the center of its sheet anda plurality of webs can beend registered alike so as to bring them to the folder in registration,and to provide automatic means for controlling the same.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. 1 isan end view of two decks of a printing press, shown diagrammatically andhaving certain parts in section to illustrate features of thisinvention;

Fig. 2 is a plan, partly in section, of an embodiment of this inventionin which the operation is pneumatic for side register;

Fig. 3 is a transverse sectional view of the stationary pipe or cylindershown in Fig. 2;

Fig. 4is a view similar to Fig. 2 showing an electric side register;

Fig. 5 is a transverse sectional view of the same and showing the reeland the wiring for accomplishing the desired result;

Fig. 6 is a sectional view of the-end registering device, and

Fig. 7 is an end view, partly in section, of a perforating couple usedin connection with the end registering mechanism.

When a number of sheets are to be printed it is important that thesesheets be registered endways so that in the completed product theprinted matter is always placed in the same position, each page thusproducing a pleasing appearance. It is a very easy matter for a sheet toget out of register endways, especially when there is a long lead fromthe prlnting'couple to the folding machine. In this case a slightvariation in tension changes the t'autness of the web and the amountwhich it is stretched. This disturbs the end 5 register.

According to this invention automatic means is provided for controllingthe sheet so that the finished product will always be in register end-,ways so that two or more webs can be run into the folder in perfect endregister with each other. V

This is done automatically without any action on the part of theoperator. 7

The invention is shown as applied to a well known type of printing presscomprising the printing couples I0, web roll H, inking mechanism l2 andfolding machine H3. The web is led from the web roll l I over the usualguiderolls and over a stationary pipe I4 which, in the form shown inFigs. 1, 2 and 3 is provided with perforations l5 just at the edges ofthe web W. This pipe is provided with two chambers l6 separated entirelyfrom each other and each one communicating with one of the perforationsI5. Each of the chambers is provided with a pipe El through which air isexhausted from it. These two perforations are so located that they areboth covered by the web W when it is in register. Whenever it gets outof side register one or the other of these openings I5 is exposed; Meansis provided, not shown herein, whereby the admission of air to one ofthe chambers 56 will shift the web roll in the proper direction to bringthe web roll into register. This is done automatically Without anyattention on the part of the operator.

In the form shown in Figs 4 and 5 this means is electrical. In this casea stationary pipe i8 is provided in place of the pipe M and it has ontop a pair of metal contacts l9 near the ends which are covered by theweb W normally as in the other case. There is a contact 20 on each side,

. which normally is held out of contact with the contacts [9 by theedges of the web, but if the paper moves to one side or the other, oneof these pairs of contacts will be completed.

The circuit indicated in Fig. 5 will then be made to a motor 2! which isconnected with the web roll reel 22 by proper gearing, or screw,connected with its shaft so as to move the reel to the right or left inaccordance with which contact I9 is completed. It will move it only so.far as to bring the web over into position to insulate both pairs ofcontacts and the motor will stop. Of course, in this case there can be amotor on each side as indicated. Also there can be a system of wiringwhich will operate one motor either inone direction or theother,according to the line which was connected up by the'contacts l9 and 20.In either case side register is secured and maintained at all 23 and 24,is provided, one of them having a perforatingpunch 25 at the edge of theweb where it-will provide-perforations along the edge of the web atstated distances apart.

The web passes over a compensating r011 25 which is adjustable by meansof a screw 21 and a motor 28 having a gear on its shaft operating a gear29 which is screw-threaded to move the screw 21 in one direction or theother according I to the direction of rotation of this motor. The

web then passes over a stationary pipe 30, movable compensating roll 3|,and another stationary pipe 32. Both of these pipes are provided withslots 33 and 34 respectively and on each pipe operates a registeringroll 35 and 36 operated by gearing 31 from the press and rotating inproportion to the speed of the press. These registering rolls are placedclose to the former l3 of the folding mechanism and each is providedwith a perforation 38 and 39 respectively. The perforations are soplaced that when the paper .is

led around the compensating roll 3| and is in perfect register in thefolder, the rear perforation in the paper is just behind the perforation38 and the front perforation of the paper is just in front of theperforation 39. Any shifting of the'web forward would cause the rearperforation of the paper to coincide with the perforation 38 at the timethat perforation registers with the slot in the stationary pipe 30. Thisadmitsair into the exhausted-chamber of the pipe30 which,

' by suitable means, not shown, will operate the motor 28 and adjust thecompensator roll 26 and move it to the left. This moves the rearperforation of the paper'to the rear to close the perforation in theroll 35 and compensates for any tendency of the paper to run ahead.Ina-similar way any tendency of the web to slip back causes the 'frontpaper perforation to register. with the perforation in the registeringroll 36 at the time that the perforation thereof coincides with the slotin the pipe 32. This exhaustion of the chamber of this pipe in theregistering roll is used in the same way tooperatethe motor 28 in the'opposite direction. v This corrects any tendency of the webto slip back.A set of registering means at the same time is shown in the other deckand therefore the two webs come into the folder in perfect endregistration.

It will be seen therefore that all the webs are registered perfectlysideways and that they are all registered also endways 'so that they allcome into the folder alike. the center of each sheet and the webs arefolded together in proper registration with each other. All thisisperformed automatically and without any attention on'the part of theoperator and 50 the motors or other devices for moving the web Theprinted matter is in roll or the web itself have to be, operated only alittle at each time.

Although I have illustrated and described only two forms of theinvention I am aware of the factthat other modifications may be madetherein by any person skilled in the art without departing from thescope of the invention as expressed in the-claims. Therefore I do notwish to be limited in this respect but what I do claim is: v

1. In an end registering device, the combina-- tion of a forward and arear hollow registering roll spaced apart, each having a perforation,the interior of said rolls being adapted to be exhausted, for carrying aweb having perforations at, intervals just far enough apart so that when.the folding mechanism, two stationary hollow ,members, each connectedwith air exhausting m ans, and each having a slot through its wall,

a d a hollow registering roll rotatably mounted on each member and eachhaving a perforation, the two perforations being at a distance apartjust short of the length of a sheet to be printed on a web havingperforations and adapted to register with said perforations in therolls, when the web gets out of endregister. v

3. In a web fed printing press, the combination with a web roll, of a,hollow stationary pipe having a perforation, a roll rotatably mounted onsaid pipe and constituting a roll for receiving the web and having a.perforation, said pipe being under reduced air pressure, whereby, whenthe web turns the roll to a position in which the two perforationsregister, air will be permitted to enter the pipe through the twoperforations, if they are not sealed outside the pipe.

HENRY A. WISE WOOD.

